Atomizing apparatus, particularly for arboriculture and agriculture



1954 L. PASTEUR ATOMIZING APPARATUS. PARTICULARLY FOR ARBORICULTURE ANDAGRICULTURE Filed July 14, 1949 llWf/VTOR Lozzzslkdezlzy NQL Wu L H NPatented Feb. 2, 1954 ATOMIZING APPARATUS; PARTICULARLY' EOEARBORICULTURE AND AGRICUL- TUBE;

Louis Pasteur, VersaiIles, France Application July 14, 1949, Serial No.:104,633;

-P y, application France November 16; 1948" GRGI'aims.

11 The object-of the=present invention isan atomizingapparatus,particularly for arboriculture and agriculture; Apparatus of this type,in use at present; do not-allow the projection-of a finesprayofinsectd'estroying liquids to" a suffic-ient height to-treat relativelyhigh iruittrees from the; ground.

The: apparatus according to the invention is designedin-such a:manner-that a spray of insect destroyingliquid or powder is formedinsidethe apparatusitself, before=being projected, and is then' expelled fromsaid apparatus by an airstream of such a force that this spray can beprojected. to the height necessary for treating fruit trees. itsrelease. from the aparatus ensures, further, that no liquid dropletisprojected directly on to parts of the trees located at asmall height,which is: known tobe detrimentaldue'to the violent. impact. occurring insuch a case on the leaves or small twigs of the-trees:

According to the invention, theapparatuscomprises a'sourceof insectdestroying solution, connected at the outlet of a centrifugal highpressureventilator, motor driven, thestream of air forced out from theventilator causing a suc-- ticn effect on the solution, which is"projectedby means of a ducttermi'natingv into one or more nozzles, on tothe plants to beprotected, in such:

afmanner that the spray of insect destroying product can reachthenecessary height for the.

treatment: of all fruit trees.

According to a preferred type of embodiment,v

there are assembled, on a wheel train or'a vehicle; a tan-la and/or apump, the centrifugal ventilator and its engine driving it' directly, a

ductrconnecting. thetanlc with the outlet: duct of" the" ventilator; a.-filterand a stop-cockinzsaid duct; a shunt on the outlet of theventilator; go-

ing to a diifusion element projecting part of compressed air'onthe-engine to cool it, a piping,

connecting-theexhaust of' the engine to a perforated pipelocated'in thebase of the" tank, a duct going: from the outiet. from: the ventilator13010116017111018. projection nozzles, a branch taken from; said duct,which can be connected with the perforated pipe located in :the base ofthe tank; and a control element, such as a three way :cock; makingitpossible; to send, into the perforated pipe-located in the tank, at.will, either the ex hausttgases from; the engine, or compressed .air;to, cause thecagitation of the solution contained therein;

According;- to; another characteristic; the nozzle is mounted soz-as:to: Ice-capable of orientation;

The production ofthe spray before bymeans of a flexible tube, on a" benttubeattached to the vehicle-andthrough which the air: forcedout by"the"ventilatorarrives; then the: solution brought by a pipe iii-saidnozzle is-led;

to a spray nozzle-placed inside a diffusion elemerit, a defiectorbcingarranged at the'end of said spray nozzle. The rigid bent tube, mountedAn embodiment of theapparatus according to" the invention is shown, bywayof example, inthe appended drawing in which- Figure 1 is adiagrammatic view, in sectional elevation, of an apparatus according" tothe invention, providedwi-th a tank.

Fig-ure- 2 is a diagrammaticview ineievation, corresponding toline-II-JI'of Figure l, of 'anin"- stallation provided witha pumpdrawing-waten directly or in the tank.

Figure 3-i's a sectional view, substantially along' line-ZII-III ofFigure-1'.

Figure 4 is a detail-section.

According to Figure 'I, the apparatus comprises essentially a tank l,containing an insect-do stroying solution, which is connected; thrcughaduct'z', wherein are inserted-a filter3 andacock with the discharge-duct5 oi'acentrifugal high' pressure ventilator or blower 6E Duct 5 leads'toone or more pro-jecticnnozzles T.

The centrifugal ventilator B-is driven by anengine-& preferably bydirect gearing.

of the airforced back by the centrifugal ventilator fi may be shunted atS'from the ventilatorhousing, and directed by a diffusionelement H onthe motor 8 to ensure its cooling;

The exhaust of the engine 8 is connected throughapiping lwith aperforated pipe 12,

located in the base of the tank 5; so" that the solution containedinsaid tank can-be-agitated by the exhaust: gases issuing front theholesof the pipe l2 and rising through said-solution to escape at the upperpart of the'tanlc, at" 3 'for example, underneath its-lid, M;

The turbulence of the solution contained in tan-ls i may also be ensuredby compressed air derived at 15 from duct; 5 and directedthrough a duct:E5 connectcdwith piping H to the perforated tube ir'located'in-the baseof the tank. A-cock ll makes ilt possible to stop-'the-pipingtfiz'Further,- a three way E 8 makesit possible,- according toitssetting,toplace in communication ducts I t and H toconnect-theex- I haustofengine 8 with the-perforatedtube: F2 01 3 to stop this connection and toconnect duct H with the exhaust to the atmosphere at l9 and to connectduct [6 with duct I I to send compressed air derived at I5 into theperforated tube l2.

It is obvious that instead of a three way cock, l8, several stopperscould be provided, fulfilling separately the various above describedfunctions.

The olution, preferably put in agitation in tank I, either by theexhaust gases of the engine or by compressed air issuing from the holesof pipe 12, is led through the pipe 2 and filter 3. which stop theundesirable large particles.

A lift and force pump sucks in water from tank I and forces it towardsthe projection duct 5. The engine 8, mounted on the base 23 and providedwith the fuel tank 24 is inserted between the pump 20 and the ventilator6; it thus ensures simultaneously the driving of these two pieces ofapparatus. Two clutch mechanisms may be inserted between the pump andthe engine on one hand and between this engine and the ventilator on theother hand, to allow of using these pieces of apparatus separately ifdesired. These clutches are not indispensable and it will be seen thatin the example shown the assembly engine-pump-ventilator constitutes acompact unit of small bulk on one shaft.

The apparatus shown schematically is preferably mounted on a wheel trainallowing its easy displacement on the ground. It may also be constitutedby a fixed block capable of being mounted on a tractor or otheragricultural vehicle. The utilization of the high pressure centrifugalventilator constituted by a paddle wheel mounted in a housing of smallwidth makes it possible to place said ventilator and its driving enginedirectly against the tank I, thus obtaining a block offering a smallbulk. This particular centrifugal ventilator generates an air streamunder a very high pressure, which makes it possible to project the sprayof atomized solution or the powder to a very great height. Thus allfruit trees can be treated, from the ground up. The apparatus can alsobe used for powder projection,

The projection of exhaust gas or compressed air in the tank forproducing the turbulence may be continuous or intermittent.

The stopper 4, controlling the distribution of the solution to theprojection duct 5, is conveniently controlled by means of a pedal, whichis easier for the operator whose hands are occupied with the projectionnozzle.

A nozzle 66 is mounted on a flexible hose 5?, preferably a rubber hose,attached to a supporting collar 58. Articulated connecting rods, 89, 10,the articulations of which may be blocked by means of screws and nuts,constitute a knuckle joint for supporting the nozzle 66 on collar 68.

This collar 68 is itself mounted on the end of a bent tube H, serving asa pivot, and connected to the discharge duct 5 through which the airarrives, forced by the blower 6, attached to the chassis of the vehicle.

14 designates the levers associated with the nuts for locking thescrews, allowing the articulating to the knuckle joint 6910.

A collar 15, attached on tube H, carries a seat 1 B on which theoperator sits.

The liquid solution arrives from the pump 20 through the hose 1'! whichgoes around a diffusion element 18 to reach a spray nozzle 19 opening infront of this difiusion element and at the front part of which adeflector 19' is located.

According to Figure 3, H3 designate an adjusting lever for the sectionof the hose l'l. As

shown on Figure 4, two contoured plates H, Ti, surrounding said hose TIand the end of lever H3, constitute two jaws H3 and H3" which act onplates ll", 17", when said lever is rotated by causing them to throttlemore or less the flexible hose ll to regulate its section. H4 is acontrol lever for the forks H5 acting on the stem 19" of the deflector19, to bring the latter closer to or farther away from the outlet of thedelivery tube 19.

This mounting of the nozzle 65 on the atomizing apparatus makes itpossible for the operator sitting on the seat 16 to direct said nozzleat will, then to adjust by means of lever I I3 the section for the flowof solution and, by means of lever lit the action of the deflector,ensuring a particularly rational operation.

What I claim is:

l. Atomizing apparatu particularly for arboriculture and agriculturecomprising a pump, a centrifugal blower, an internal combustion engineincluding a shaft common to said pump and said blower for driving saidpump and blower, a tank for containing an insect destroying product, aconnection between said tank and the inlet of said pump, a mixing devicein said tank and connected to said engine, a duct connected to theoutlet of said centrifugal blower, a duct connected to the outlet of thepump and leading to the duct connected to the centrifugal blower, and anadjustable spraying nozzle connected to the end of the duct connected tothe centrifugal blower.

2. Atomizing apparatus particularly for arborL culture and agriculturecomprising a pump, a centrifugal blower, an internal combustion engineincluding a shaft common to said pump and said blower for driving saidpump and blower, a tank for containing an insect destroying product, aconnection between said tank and the inlet of said pump, a perforatedtube in said tank, a piping connected to the exhaust of the internalcombustion engine and leading to the perforated tube, a duct connectedto the outlet of said centrifugal blower, a duct connected to the outletof the pump and leading to the duct connected to the centrifugal blower,and an adjustable spraynected to the centrifugal blower.

3. Atomizing apparatus particularly for arbori culture and agriculturecomprising a pump, a centrifugal blower, an internal combustion engineincluding a shaft common to said pump and said blower for driving saidpump and blower, a tank for containing an insect destroying product, aconnection between said tank and the inlet of said pump, a mixing devicein said tank and connected to said engine, a duct connected to theoutlet of said centrifugal blower, a duct connected to the outlet of thepump and leading to the duct connected to the centrifugal blower, arigid tubular bend at the end of said latter duct, an orientable nozzleon said bend for receiving the insect destroying product through saidlatter duct, a diffusion element mounted in said nozzle, a spray nozzleinside said diffusion element, and an adjustable deflector located atthe end of the nozzle.

4. Atomizing apparatus particularly for arboriculture and agriculture inaccordance with claim 3, comprising a collar on the rigid bend and aseat mounted on said collar, and a second collar rotatable on the end ofthe bend and above the first mentioned collar, and a flexible hoseconnecting said second collar with the nozzle.

5. Atomizing apparatus particularly for arboriculture and agriculture inaccordance with claim 3, comprising a collar on the rigid bend and aseat mounted on said collar, and a second collar rotatable on the end ofsaid bend and above the first mentioned collar, and. a flexible hoseconnecting said second collar with the nozzle, a knuckle jointinterposed between said second collar and the nozzle, and a blockingdevice for said knuckle joint in the set position.

6. Atomizing apparatus particularly for arboriculture and agriculture inaccordance with claim 3, comprising a collar on a rigid bend and a seatmounted on said collar, and a second collar rotatable on the end of saidbend and above the first mentioned collar, a flexible hose connectingsaid second collar with the nozzle, a knuckle joint interposed betweensaid second collar and the nozzle, a blocking device forsaid knucklejoint in the set position, a control lever on the nozzle and includingtwo jaws throttling the flexible hose, and a second control-lever on thenozzle for controlling the spacing of the deflector from the outlet ofthe duct connected to the outlet of the delivery tube.

LOUIS PASTEUR.

References Cited in the file of this patent UNITED STATES PATENTS NumberNumber

